v3.26.3
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Operating activities:    
Net Income (Loss) $ (8,364) $ (9,708)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation and amortization 11,538 11,082
Stock-based compensation 47,092 40,096
Accretion of discount or amortization of premium on investments (685) (1,860)
Amortization of debt issuance costs 1,444 1,274
Loss on fixed asset disposal 114  
Gain on remeasurement of capped call transactions (102)  
Induced conversion expense related to convertible notes 13,731 15,026
Deferred tax expense (308) (297)
Changes in operating assets and liabilities:    
Accounts receivable (7,372) (4,153)
Inventory 1,553 6,806
Prepaid expenses and other assets (1,937) (1,409)
Accounts payable (204) (977)
Accrued compensation and employee related benefits 5,179 (12,906)
Accrued and other liabilities (899) 659
Operating lease right-of-use assets 1,211 2,019
Operating lease liabilities (255) (2,699)
Deferred revenue (544) 657
Net cash provided by operating activities 61,192 43,610
Investing activities:    
Purchases of investments (120,959) (146,293)
Proceeds from sales of investments 45,183 12,937
Proceeds from maturities of investments 115,072 115,480
Purchases of property and equipment (9,186) (11,343)
Net cash provided by (used in) investing activities 30,110 (29,219)
Financing activities:    
Proceeds from issuance of 2025 Notes, net of issuance costs   183,658
Premiums paid for capped call transactions   (11,210)
Payment of 2021 Notes (103,560) (190,000)
Proceeds from exercise of stock options and employee stock purchase plan 5,296 11,025
Payments of taxes on restricted stock units (2,415) (2,550)
Net cash used in financing activities (100,679) (9,077)
Effect of exchange rate changes on cash and cash equivalents (88) 359
Net increase (decrease) in cash and cash equivalents (9,465) 5,673
Cash and cash equivalents    
Beginning of period 48,206 46,053
End of period 38,741 51,726
Supplemental disclosure of cash flow information:    
Cash paid for interest 687 2,288
Purchases of property and equipment not yet paid 391 608
Lease liabilities arising from obtaining ROU Assets 1,659 $ 507
Cash settlement election for capped call transaction and resulting reclassification from equity to derivative asset $ 48,554